Jarl Ulf

Jarl Ulf was a Danish jarl of Northymbre during the 9th century. In 878, he pledged allegiance to King Guthred, and, while he believed that Northymbre had no business in marching on Eoferwic and initially disagreed with Guthred's refusal to ambush and destroy Sigefrid and Erik Thurgilsson's army, he gave his loyalty to the new King.